2026 NPPES data Cardiovascular Disease Physician NPI 1871671354 MD
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ALAN AMENT, MD

Cardiovascular Disease Physician in SAN RAFAEL, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 538 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ALAN AMENT, MD is a Cardiovascular Disease Physician ([object Object]) practicing in SAN RAFAEL, California with a Medicare Part D prescribing footprint of 3K claims across 538 beneficiaries — 25% brand-name prescribing .

What stands out: ALAN AMENT, MD filed 2,578 Medicare Part D claims in 2023 across SAN RAFAEL, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ALAN AMENT, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ALAN AMENT, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/01/2006

NPI 1871671354

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

2,578 15% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in California

How Cardiovascular Disease Physician compares to other specialties among California providers

California providers

Cardiovascular Disease Physician share within California

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Cardiovascular Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Cardiovascular Disease Physician ABMS/AOA estimate

Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ALAN AMENT, MD is a Cardiovascular Disease Physician provider practicing in SAN RAFAEL, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1871671354. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ALAN AMENT, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 99 MONTECILLO RD, SAN RAFAEL, CA, 94903, with a listed phone of (415) 444-2000. NPI 1871671354 was issued on 11/01/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AMENT most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,578 prescription claims written by this provider, covering 538 Medicare beneficiaries and totaling roughly $2.1 million in drug spend, split 25% brand-name and 75% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

99 MONTECILLO RD
SAN RAFAEL, CA 94903

Provider Details

NPI 1871671354
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 11/01/2006

Hospital and facility affiliations

Facilities where ALAN AMENT, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

PERMANENTE MEDICAL GROUP INC
SAN RAFAEL, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to ALAN AMENT, MD. To verify ALAN AMENT, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

ALAN AMENT, MD — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 2,578 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,578
Total Claims
$2.1M
Total Drug Cost
538
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,331
Total Day Supply
218,518
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$2.1M
Generic Drug Cost
$42K
Antibiotic Claims
16

Patient Demographics

Average Patient Age
78.2 years
Avg HCC Risk Score
1.62
Gender Split
40% female / 60% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Metoprolol Succinate
241
Torsemide
180
Entresto
Sacubitril/Valsartan
165
Atorvastatin Calcium
125
Spironolactone
123
Pradaxa
Dabigatran Etexilate Mesylate
121
Diltiazem 24hr Er (Cd)
Diltiazem Hcl
115
Flecainide Acetate
104
Carvedilol
92
Amiodarone Hcl
89

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How ALAN AMENT, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

ALAN AMENT, MD's 2,578 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as AMENT.

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALAN AMENT, MD's specialty?
ALAN AMENT, MD specializes in Cardiovascular Disease Physician and practices in SAN RAFAEL, California. Credentials: MD.
How much does ALAN AMENT, MD prescribe under Medicare Part D?
In 2023, ALAN AMENT, MD wrote 2,578 Medicare Part D claims totaling $2.1M in drug costs for 538 beneficiaries.
Where is ALAN AMENT, MD located?
ALAN AMENT, MD is located at 99 MONTECILLO RD, SAN RAFAEL, CA, 94903. Phone: (415) 444-2000.
What is ALAN AMENT, MD's NPI number?
ALAN AMENT, MD's National Provider Identifier (NPI) is 1871671354, issued on 11/01/2006.
Does ALAN AMENT, MD prescribe more brand-name or generic drugs?
ALAN AMENT, MD's prescribing is 25% brand-name and 75% generic drugs by claim count, with $2.1M in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does ALAN AMENT, MD prescribe most often?
Based on 2023 Medicare Part D data, ALAN AMENT, MD's most frequently prescribed drugs include Metoprolol Succinate, Torsemide, Entresto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALAN AMENT, MD accept Medicare?
ALAN AMENT, MD appears in CMS Medicare data with 2,578 Part D claims and 538 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALAN AMENT, MD's credentials?
ALAN AMENT, MD's NPI is 1871671354 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology